To minimize the number of modules to compile when building JVM COBOL projects, Visual COBOL now enables you to configure your projects so that they are built incrementally - the IDE only rebuilds the files that have changed.
To enable incremental builds for JVM COBOL applications that contain namespaces, check the Use incremental build (Technical preview feature) option on the project build configuration tab in the project's properties.
For JVM COBOL applications that do not contain namespaces, you can use the Use dynamic calls option available on the build configuration tab in the project's properties. When the project is built with this setting, calls to modules are resolved at run time rather than during compilation. This has the effect of not requiring every module to be compiled when rebuilding the application.